OVERVAAL TUNNEL

Create capacity on the TFR Coal Line and unblock the bottleneck created by the existing single tunnel.

Feasibility (FEL 3) > Detailed Design (FEL 4) on OHTE, Signalling, Telecommunications and Condition Assessment Systems.

Design and Provide OHTE and Signalling Infrastructure for a new 4km double track tunnel.

Technical Areas (R&H)

• Space-proofing (with tunnel designer)
• Purpose designed, maintenance friendly OHTE tunnel attachments / fittings and OHTE layout in adjacent section
• Alternative OHTE wires (Cu Mg Contact), Switching protocol versatility of OHTE circuits
• Extend existing signaling system to include the new double tunnel and associated track
• Spoorplan Mk 1b interlocking with CS90 remote control and VDU display
• Extend GSM Train Radio coverage through the new tunnel
• Re-design / modify Optical Fibre Cable (OFC) back bone to include services for new tunnel
• Additional / enhanced Condition Assessment Systems for the protection of the new tunnel